#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
char* my_strcat(char* p1, char* p2)
{
	char* star = p1;
	while (*p1)
	{
		p1++;
	}
	while (*p1++ = *p2++)
		;
	return star;
}
int main()
{
	char arr1[20] = "Hello ";
	char arr2[] = "Word";
	char* p = my_strcat(arr1, arr2);
	printf("%s\n", p);
	return 0;
}